// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
// then press Enter. You can now see whitespace characters in your code.
public class Main {
    public static void main(String[] args) {
        Test1 test1 = new Test1();
        int[] arr = {1,3,7,11,12,14,18};
        test1.lenLongestFibSubseq(arr);
        System.out.println(999);
    }
}